C12313211232233312111111312111133133313331333133313311222122311   >>    C1231321123223331211111131211113313331333133313331331122212231   <<    C12313211232233312111111312111133133313331333133313311222122313   >>      C12313211232233312111111312111133133313331333133313311222122312   >>